Vulnerability details

CVE-2026-6027

Totolink A7100RU

Totolink A7100RU CGI cstecgi.cgi setUrlFilterRules os command injection

CVSS 4.0

9.3Critical

Official description

A weakness has been identified in Totolink A7100RU 7.4cu.2313_b20191024. This issue affects the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument enable can lead to os command injection. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

CVSS scores

Score	Version	Source	Vector
9.3Critical	4.0	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`
9.8Critical	3.1	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R`
9.8Critical	3.0	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R`
10.0High	2.0	CVEProject cvelistV5 (CNA) (VulDB)	`AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR`

Affected products

Vendor	Product	Versions	Source
Totolink	A7100RU	7.4cu.2313_b20191024	CVEProject cvelistV5 (CNA)

References and advisories

https://vuldb.com/vuln/356603 vdb-entrytechnical-description
https://vuldb.com/vuln/356603/cti signaturepermissions-required
https://vuldb.com/submit/792048 third-party-advisory
https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_172/README.md exploit
https://www.totolink.net/ product

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Details

Published: 2026-04-10
Last updated: 2026-04-14
State: Published
Assigner (CNA): VulDB

Exploit prediction (EPSS)

2.54%

Probability of exploitation in 30 days

85%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-78
OS Command Injection
CWE-77
Command Injection